Rotation Period Determination for 1220 Crocus
Abstract
R.P. Binzel (1985) described two superposed periods for 1220 Crocus on the basis of rather sparse lightcurves: 30.7 days, amplitude 0.87 magnitudes; and 7.90 hours, amplitude 0.15 magnitudes. We have looked for this behavior again with a much denser data set. We find a period of 491.4 hours, amplitude 1.0 magnitudes; a careful search with dual period software finds no evidence of a second period at a level better than 0.1 magnitudes. A color index V-R = 0.47 ± 0.03 is found, and H-G parameters are H = 11.76 ± 0.07 mag, G = 0.05 ± 0.05.
- Publication:
-
Minor Planet Bulletin
- Pub Date:
- July 2015
- Bibcode:
- 2015MPBu...42..155P